在露天矿台阶深孔爆破中，经常出现水孔，尤其是在雨季水孔更多。原来出现水孔时，有两个解决的方法：一个是用风管吹，小铁桶掏，结果是吹不净，掏不干；二是用防水炸药处理。由于防水炸药的密度高，装药高度下降，能量下移，造成能量分配不均，爆破能量利用率低，爆破效果差 In the open pit deep hole blasting, water holes often occur, especially in the rainy season more holes. The original emergence of water holes, there are two solutions: one is blowing with a duct, a small iron bucket dig, the result is not blown net, dig not dry; the second is treated with waterproof explosives. Due to the high density of water-resistant explosives, the charge height drops, the energy down, resulting in uneven energy distribution, blasting energy utilization is low, the blasting effect is poor